CN106060877B

CN106060877B - Method and apparatus for cellular communication

Info

Publication number: CN106060877B
Application number: CN201610578624.0A
Authority: CN
Inventors: 许丽香; 孙程君
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2011-10-24
Filing date: 2011-10-24
Publication date: 2020-04-21
Anticipated expiration: 2031-10-24
Also published as: CN103068048A; WO2013062297A1; CN106060877A; US20140256338A1

Abstract

The embodiment of the invention provides a cellular communication method, which comprises the following steps: network side equipment receives a service request of User Equipment (UE); according to the service request, network side equipment selects communication resources of two or more base stations for the UE, wherein at least two base stations have different communication modes; and the base station communicates with the UE according to the communication resources. The invention also provides network side equipment and User Equipment (UE). By utilizing the scheme provided by the invention, the mobile communication system can provide services for the UE simultaneously by providing a plurality of base stations and/or base stations with a plurality of communication modes. In addition, no matter the network side equipment or the UE, the adaptive access technology can be dynamically loaded, so that the user can access different mobile communication systems at any time and any place, and meanwhile, the system can be dynamically and adaptively adjusted according to the existing resources of the network to provide services with larger bandwidth and higher rate for the user.

Description

Method and apparatus for cellular communication

The present application is a divisional application of chinese patent application No.201110324871.5 entitled "method and apparatus for cellular communication" filed 24/10/2011.

Technical Field

The present invention relates to mobile communication technology, and in particular, to a method and apparatus for cellular communication.

Background

Modern mobile communication is more and more tending to provide users with full multimedia services, and third generation mobile communication and its evolution technology have become the main research field of modern mobile communication. For example, fig. 1 is a system architecture diagram of SAE (system architecture Evolution). Here, a UE (User Equipment) 101 is a terminal device for receiving data. An E-UTRAN (Evolution-Universal radio Access Network) 102 is a radio Access Network, and includes a macro base station eNB providing an Access radio Network interface for a UE. An MME (Mobile Management Entity) 103 is responsible for managing the mobility context, session context, and security information of the UE. The SGW (serving Gateway) 104 mainly provides the function of the user plane, and the MME 103 and the SGW 104 may be in the same physical entity. The PGW (Packet data network Gateway) 105 is responsible for functions such as charging and lawful interception, and may also be in the same physical entity as the SGW 104. The PCRF (Policy and Charging Rules Function) 106 provides QoS (Quality of Service) Policy and Charging criteria. The SGSN (Serving gprs support Node) 108 is a network Node device that provides a route for data transmission in UMTS (Universal mobile telecommunications System). The HSS (Home Subscriber Server) 109 is a Home subsystem of the UE and is responsible for protecting user information including the current location of the user equipment, the address of a serving node, user security information, packet data context of the user equipment, and the like.

An E-UTRAN architecture supporting Relay or RN (Relay or Relay node) is shown in fig. 2. The method comprises a macro base station eNB and an RN. The RN accesses a DeNB (eNB serving the relay) through a modified E-UTA radio interface (Un). RN is the end point (termination) of the E-UTRA air interface and S1/X2 interface. The RN does not support the Function of the NNSF (NAS Node Selection Function). The DeNB also provides S-GW/P-GW like functionality for the operation of the RN. The DeNB terminates (terminate) the S11 interface between the MME and the DeNB.

Now, the RN can only access the core network through one DeNB, and does not support the NNSF function. In a dense city area, there may be many UEs served by one RN, and the UE needs more and more service types, the traffic volume is larger and larger, and the service rate is higher and higher. How to meet these requirements of users is a very important issue. If the RN is used in a mobile environment such as a bus, a subway or a high-speed rail, the number and types of base stations served along the subway are small, and how to meet the requirements of users in the coverage area of the RN in such a situation is also a problem which needs to be paid special attention. In addition, generally, the access systems of UEs in one RN service area will be different, and how to simultaneously serve terminals of multiple access systems is also a problem to be solved. Without considering RNs, the same problem is faced by networks, namely how to provide services that meet the quality of service QoS of services for the ever increasing demands of users.

Therefore, there is a need to provide a more advanced access technology and communication network architecture, which solves the problem of inconvenient access to the network for users in the prior art.

Disclosure of Invention

The present invention aims to solve at least one of the above technical drawbacks, and in particular, to provide a plurality of base stations and/or base stations of multiple communication systems to simultaneously provide services for a UE, and enable a network side device and the UE to dynamically load an adaptive access technology, so that a user can access different mobile communication systems at any time and any place.

In order to achieve the object of the present invention, in one aspect, the present invention provides a method for cellular communication, including the following steps:

network side equipment receives a service request of User Equipment (UE);

according to the service request, network side equipment selects communication resources of two or more base stations for the UE, wherein at least two base stations have different communication modes;

and the base station communicates with the UE according to the communication resources.

The invention also provides a network side device, which comprises a receiving module, a resource allocation module and a sending module,

the receiving module is used for receiving a service request and data information of User Equipment (UE);

the resource allocation module is used for selecting communication resources of two or more base stations for the UE, wherein at least two base stations have different communication systems;

and the sending module is used for sending data information to the UE according to the communication resources.

In another aspect, the present invention further provides a cellular communication method, including the following steps:

user Equipment (UE) sends a service request to network side equipment;

the UE receives communication resources of two or more base stations selected by network side equipment for the UE on a common channel, wherein at least two base stations have different communication modes;

and the UE communicates with the base station according to the communication resource.

In another aspect of the present invention, a UE is further provided, which includes a sending module, a resource allocation module and a receiving module,

the sending module is used for sending a service request to the network side equipment;

the receiving module is used for receiving communication resources of two or more base stations selected by the network side equipment, wherein at least two base stations have different communication systems;

the resource allocation module is used for allocating corresponding resources to the service according to the communication resources; and

the sending module and the receiving module communicate with the network side device at the corresponding resources.

By utilizing the scheme provided by the invention, the mobile communication system can provide services for the UE simultaneously by providing a plurality of base stations and/or base stations with a plurality of communication modes. In addition, no matter the network side equipment or the UE, the adaptive access technology can be dynamically loaded, so that the user can access different mobile communication systems at any time and any place, and meanwhile, the system can be dynamically and adaptively adjusted according to the existing resources of the network to provide services with larger bandwidth and higher rate for the user. The method or the equipment provided by the invention has the advantages that the existing equipment and system are slightly changed, the compatibility of the equipment is not influenced, and the realization is simple and efficient.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a conventional SAE system;

FIG. 2 is a diagram of an E-UTRAN architecture supporting RNs;

FIG. 3 illustrates a first embodiment of the present invention;

FIG. 4 is a schematic diagram of data merging;

FIG. 5 is a second embodiment of the present invention;

FIG. 6 illustrates air interface information transmission in a communication system;

FIG. 7 illustrates a third embodiment of the present invention;

FIG. 8 is a fourth embodiment of the present invention;

FIG. 9 illustrates a fifth embodiment of the present invention;

FIG. 10 illustrates a sixth embodiment of the present invention;

fig. 11 shows a seventh exemplary embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

Generally, different communication systems correspond to different access technologies, that is, different communication systems have different access technologies and access modes. Only when the communication system is accessed to the communication system with the matched communication system by adopting the corresponding technology, the service can be obtained in the communication system. In order to achieve the object of the present invention, an embodiment of the present invention provides a method for cellular communication, including the following steps:

network side equipment receives a service request of User Equipment (UE);

According to the method provided by the invention, the network side equipment can provide services for the UE through providing a plurality of base stations or base stations with a plurality of communication modes. In the present invention, the network side device includes, but is not limited to, an RN, a base station, or a resource management module functional entity.

For example, when the network side device is an RN, the RN establishes uplink and downlink user plane information with the base station according to the cell broadcast of the base station or the broadcast information of the resource management module or obtains available resource information through the communication between the RN and the base station management module, establishes a bearer for data transmission, and selects communication resources of two or more base stations for the UE.

When the network side equipment is the resource management module functional entity, the resource management module functional entity communicates with the base station to update the resource state information, and selects communication resources of two or more base stations for the UE.

When the resource management module functional entity performs resource allocation, if the base station has the RN, the method further includes: the RN and the resource management module functional entity establish end-to-end communication and select communication resources of two or more base stations for the UE.

In the present invention, the base station is a base station including, but not limited to, one or more of the following communication systems: a GSM base station, a WCDMA base station, an LTE base station, or an LTE-A base station.

In addition, the base station or the RN under the base station dynamically adds the supported access mode according to the service request or the environment condition of the UE, and the communication system corresponding to the access mode includes, but is not limited to, one or more of the following communication systems: GSM, WCDMA, LTE, or LTE-A.

In order to enable user equipment using different systems to access networks of different systems, as an embodiment of the present invention, an uplink and downlink common channel independent of a communication system is established between network side equipment and UE, the network side equipment and the UE perform resource information interaction through the uplink and downlink common channel, and the uplink and downlink common channel transmits information common to various access technologies.

Fig. 3 is a first embodiment of the present invention. In this embodiment, the relay may provide services for the UE through multiple base stations or base stations of multiple communication systems, and the relay may combine data from multiple base stations. As shown in fig. 3, the process includes:

step 301: the terminal has service requirements, and the terminal sends a service request message to the network side equipment, for example, to the relay. The message contains the service type and QoS information requested by the terminal.

Step 302: the relay searches available access technologies and available resources according to the service requirements of the terminal, and selects an access system serving the terminal. There are various specific search methods. For example:

the first method is as follows: the cells of the respective base stations broadcast available resource information, or QoS information that can be provided. The relay learns the available resource information by listening to the corresponding information.

The second method comprises the following steps: and setting a new resource management module functional entity, wherein the function of the entity is to manage the resource information of all the access systems in the system. The resource management module functional entity broadcasts available resource information. The common module can obtain the resource information available for each base station cell through interaction with each base station.

The relay decides which access system or systems to serve the UE through based on the resource information available to each access system. For example, the service requested by the UE requires 50M of bandwidth. The relay may choose to provide 30M of bandwidth for the UE at base station a and 20M for the UE at base station B. Base station a and base station B may be the same access technology or different access technologies, for example, base station a is a WCDMA base station and base station B is an LTE base station.

Step 303, the relay sends a message to base station a to negotiate the available resources. If the base station A can provide the required service, the base station sends a confirmed message to the relay. In the method of the present invention, this step is not a necessary step, and step 304 may be directly performed.

Step 304, the relay sends a service request message to the base station a, and the relay and the base station exchange uplink and downlink user plane information to establish a bearer for data transmission (e.g. 30M data transmission). The base station a may allocate downlink user plane transmission resources after receiving the request message from the relay, and then send a request message to the core network to notify the core network of the allocated downlink user plane resources. After receiving the response message of the core network, sending the response message to the relay, and notifying the relay of the allocated uplink user plane information.

Step 305, the relay sends a service request message to the base station B, and the relay and the base station exchange uplink and downlink user plane information to establish a bearer for data transmission (for example, 20M data transmission). Optionally, the resource negotiation procedure of step 303 may also be performed with the base station B before this step. The base station a may allocate downlink user plane transmission resources after receiving the request message from the relay, and then send a request message to the core network to notify the core network of the allocated downlink user plane resources. After receiving the response message of the core network, sending the response message to the relay, and notifying the relay of the allocated uplink user plane information.

Step 306, the base station initiates a service request and bearer establishment procedure with the core network. The base station may send a response message to the relay after receiving the response message of the core network, and notify the relay of the allocated uplink user plane information.

The message of the user plane establishment process between the relay and the core network can also be forwarded through the base station, and the base station does not need to analyze the specific content of the message. This embodiment is merely an example of a method for establishing a user plane between a relay and a core network. How this is done in detail is not a focus of the invention and can be done in other specific ways without affecting the main content of the invention.

Step 307, the service provider is informed of the service request and the resource allocation information. There are many ways to inform the service provider of the information of the service requested by the UE and the bearer allocation. For example:

in the first method, the core network informs the service provider of the service request and the resource allocation information, for example, the network a is required to provide 30M bandwidth, and the network B is required to provide 20M bandwidth. Corresponding to this method, in step 304, step 305 and step 306, the relay notifies the information related to the core network through the base station, where the information may include a service identifier, and the service identifier may be a service identifier unique to the whole network or a service name, such as information of an IP address and an APN. Let the core network know the resource allocation of the same UE traffic in both networks. The same traffic is carried on both bearers of both networks, e.g. the UE requested traffic is 50M, where 30M is sent at base station-a and 20M is sent at base station-B. So that the core network can inform the service provider about the relevant information.

The second method comprises the following steps: the relay sends the service request and the resource allocation information to the service provider directly. The information comprises information that can identify the service and/or information that can identify the bearer in the respective access network and/or QoS information of the service and/or information how the service is coordinated to be sent over multiple bearers.

The method of notifying the service provider is not illustrated here, and the present invention may be applied to any one of the above methods but is not limited to the above two methods.

Thus, the service provider can send data to the relay via two networks, respectively. For example, if the size of each data packet is 10M, 3 data packets may be sent to the network a to the base station a, then 2 data packets may be sent to the network B to the base station B, then 3 data packets may be sent to the network a to the base station a, and then 2 data packets may be sent to the network B to the base station B, and so on. Each header contains a corresponding sequence number. Thus, after receiving the data packets from the two links, the relay may send the data packets to the terminal according to the sequence number on the air interface. For example, 3 data packets received from base station a are sent first, then 2 data packets received from base station B are sent, then 3 data packets received from base station a are sent, and so on. The upstream data is similarly transmitted. The schematic diagram is shown in fig. 4. Obviously, the merging and division of data may be performed on the terminal side.

The method of this embodiment may also be used in a network architecture without relays, and for this case, the relays in the figures and the description are ordinary terminals, and the terminals may search for available access technologies and available resources, and then select which access system or systems to provide the required service according to the service requirements. The method of steps 302 to 307 may be used to provide a service to the UE if multiple access systems are selected to provide the same service to the UE. The method does not include the contents of step 301.

Thus, the whole workflow of the first embodiment of the communication system and the communication method of the present invention is completed.

Fig. 5 shows a second embodiment of the present invention. In this embodiment, the relay may provide services for the UE through multiple base stations or base stations of multiple communication systems, and the relay may combine data from multiple base stations. In the system architecture, a new resource management module functional entity is provided. The function of this entity is to manage the resource information of all access systems in the system. The resource information may be available resource or used resource information in each access system, or resource information of each cell in each access system. The functional entity may communicate with a base station (e.g., base station a or base station B) to update the resource status information. As shown in fig. 5, the process includes:

step 501 is similar to step 301 and will not be described in detail here.

Step 502: the relay searches for available access technologies based on the service requirements of the terminal.

Step 503, relaying a message to the resource management module to negotiate the resources available to the access system. The resource management module can obtain the available resource information of each base station cell through interaction with each base station. The relay decides which access system or systems to serve the UE through based on the resource information available to each access system. For example, the service requested by the UE requires 50M of bandwidth. The relay may choose to provide 30M of bandwidth for the UE at base station a and 20M for the UE at base station B. Base station a and base station B may be the same access technology or different access technologies, for example, base station a is a WCDMA base station and base station B is an LTE base station.

The communication between the relay and the resource management module is end-to-end, for example, through any base station in the current position, and the base station transparently transmits the communication content of the two.

Steps 504 to 507 are similar to steps 304 to 307 and will not be described in detail here.

The method of this embodiment may also be used in the case of no relay, and for this case, the relay in the figures and the description is a common terminal, and the terminal may search for an available access technology and obtain resources available to each access technology cell in the current location, and then select which access system or systems to provide the required service according to the service requirement. If multiple access systems are selected to provide the same service to the UE, the methods of steps 502 to 507 may be used to provide the service to the UE. Thus the method does not include the contents of step 501.

Thus, the whole workflow of the second embodiment of the communication system and the communication method of the present invention is completed.

In the invention, uplink and downlink common channels can be respectively designed between a terminal and a relay, or between the relay and a base station, or between the terminal and a resource management module, or between the relay and the resource management module, or between the terminal and the base station, wherein the common channels are a new channel independent of an access system, namely the common channels are the same in all the access systems and are used for transmitting common information in a heterogeneous network, and the common channels have two implementation modes. One is to design a new channel for broadcasting the resource information available at the current location. The channel contains a location field, an operator field, an access technology field and a frequency field. The system also comprises a resource information section corresponding to a certain position, a certain operator and an access technology. The UE listens to the corresponding broadcast channel to obtain broadcast information, and selects how and where to access according to the current position of the UE and resource information provided by various operators and access technologies. As long as the network and the terminal are added with the common channel function module, the available resource information of the current position can be known in real time. Another implementation is to add broadcast information to existing access system broadcast information. For example, the information in the first method is added to the broadcast information of GSM, so that the GSM system can broadcast the available resources of each surrounding access technology, and the terminal supporting GSM can obtain the available resource information of the current location. Based on the available resource information, the UE can choose how and on which system to access. Based on the available resource information, the UE may also download new access technology software to increase the supported access technologies (described in the embodiment of fig. 10), maximizing the use of the available resources. The above functions can also be realized by adding broadcast information in the LTE system. As shown in fig. 6, the following is a detailed description of fig. 6. The functionality of existing systems can be enhanced by having them support such new channels, or by adding new entities to existing systems to support such new channel transport mechanisms.

601, the terminal transmits the public information of each access system to the relay on the uplink public channel; or relaying the public channel in the uplink to transmit the public information of each access system to the base station; or the terminal transmits the public information of each access system to the resource management module in an uplink public channel; or the relay transmits the public information of each access system to the resource management module in the uplink public channel; or the terminal transmits the information common to each access system to the base station in an uplink common channel. Such as a resource negotiation request.

Step 602, relaying the common information of each access system transmitted to the terminal in the downlink common channel; or the base station transmits the common information of each access system to the relay in a downlink common channel; or the resource management module transmits the information common to each access system to the terminal in the downlink common channel; or the resource management module transmits the common information of each access system to the relay in a downlink common channel; or the base station transmits information which is independent of the common access system to the terminal in the downlink common channel. The information is for example the resource negotiation result. Such as Public Land Mobile Network (PLMN) information available at the location, information of access systems on each PLMN, or resource information available for each cell of each access system, etc.

Under the condition of not designing a new channel, the functions of uplink and downlink channels can be enhanced in the existing system, so that the current system can broadcast the resource information of base stations adjacent to different base stations or different communication systems.

Fig. 7 shows a third embodiment of the present invention. In this embodiment, the relay may dynamically change the access modes it supports. The relay dynamically adds the supported access mode according to the service requirement of the served UE or the access mode of the available base station in the environment, and the relay can download the access mode to be supported from a common management center. The access modes are implemented by different software programming without the support of hardware such as field programmable logic array FPGA or application specific integrated circuit ASIC. The relay may also dynamically delete a supported access technology based on the traffic demand of the served UE. As shown in fig. 7, the process includes:

step 701 is similar to step 301 and will not be described in detail here.

Step 702, the relay can change the access technology of the cell according to the service requirement of the terminal if the relay can not meet the user QoS requirement or the network resource utilization is not optimized according to the communication system of the current cell, considering the whole service requirement of the current service UE. The relay needs to consider the situation that the performance of other served UEs cannot be affected or the performance of other served UEs is within the range that the user can bear or the service continuity of other served UEs when changing the access technology of the cell. If the relay can not meet the QoS requirement of the user according to the communication system of the current cell, the relay can also provide service for the UE at the current position by adding another access technology. The relay sends a message to the management center module to request to download corresponding access technology software, and the relay can reconfigure the access mode of the cell or add an access mode after the downloading from the management center is completed. In case of reconfiguring the access mode of the cell, if the current cell has other UEs, step 705 is performed for the other UEs.

The relay searches for the access technologies available at the Un (interface before relay and network) side and selects the access system serving the terminal, e.g. system a.

Step 703, the relay sends a service request message to the base station a, and the relay and the base station exchange uplink and downlink user plane information to establish a bearer for data transmission. The base station a may allocate downlink user plane transmission resources after receiving the request message from the relay, and then send a request message to the core network to notify the core network of the allocated downlink user plane resources. After receiving the response message of the core network, sending the response message to the relay, and notifying the relay of the allocated uplink user plane information.

In step 704, the base station a initiates a service request and bearer establishment procedure with the core network. The base station a may send a response message to the relay after receiving the response message of the core network, and notify the relay of the allocated uplink user plane information.

Step 705, for the other UEs served by the cell where the UE is located, the relay reconfigures the resources used by the other UEs to ensure that the other UEs continuously receive data.

Thus, the whole workflow of the third implementation example of the communication system and the communication method of the present invention is completed.

Fig. 8 shows a fourth embodiment of the present invention. The embodiment is how the base station dynamically changes the supported access modes without relay deployment. The base station dynamically adds the supported access modes according to the service requirements of the served UE, and the base station can download the access modes needing to be supported from a public management center. The access modes are implemented by different software programming without the support of hardware such as FPGA or ASIC. The base station may also dynamically delete a supported access technology based on the traffic demand of the served UE. The base station may also dynamically adapt the access technology of a certain cell according to the service requirements of the served UE. As shown in fig. 8, the process includes:

step 801, the terminal has a service requirement, and the terminal sends a service request message to the base station a. The message contains the service type and QoS information requested by the terminal. Before sending the message, the terminal may detect the access technologies available at the current location and select the access technology most suitable for the current location.

Step 802: the base station A can change the access technology of the cell according to the service requirement of the terminal if the base station A can not meet the QoS requirement of the user or the network resource utilization is not optimized according to the access technology of the current cell. When changing the access technology of the cell, the base station a needs to consider that the performance of other served UEs cannot be affected or the performance of other served UEs is within the range that the user can bear, or the service continuity of other served UEs. If the base station A can not meet the QoS requirement of the user according to the communication system of the current cell, the base station A can also provide service for the UE at the current position by adding another access technology. The base station A sends a message to the management center module to request to download corresponding access technology software, and the base station A can reconfigure the access mode of the cell or add an access mode after the downloading from the management center is completed. In case of reconfiguring the access mode of the cell, if the current cell has other UEs, step 803 is performed for the other UEs.

Step 803, for the other UE served by the cell in which the UE is located, the base station a reconfigures the resources used by the other UE, so as to ensure that the other UE continuously receives data.

Step 804, the base station a initiates a service request and bearer establishment procedure with the core network.

Thus, the whole workflow of the fourth embodiment of the communication system and the communication method of the present invention is completed.

Fig. 9 shows a fifth embodiment of the present invention. In this embodiment, the relay may provide services for the same UE through different communication systems, for example, select an access mode of the Un interface according to different service requirements. Or the relay may dynamically change the access mode supported by the Un interface according to the environment requirement (for example, the relay may change the type of the base station serving the relay in a mobile environment). As shown in fig. 9, the process includes:

step 901 is similar to step 301 and will not be described in detail here.

Step 902, the relay searches available communication systems and available resources according to the service requirements of the terminal. There are various specific search methods. For example, the first method: the cells of the respective base stations broadcast available resource information, or QoS information that can be provided. The relay learns the available resource information by listening to the corresponding information. The second method comprises the following steps: the available resource information is broadcast by a resource management module. The resource management module can obtain the available resource information of each base station cell through interaction with each base station. And the relay can know the available resource information of the current available access system through interaction with the resource management module, specifically, the relay can report the available RAT and/or cell information of the current position to the resource management module, and the resource management module returns the available resource information of each access system cell. According to the resource information available for each access system cell, the relay decides which access system or systems to select to provide service for the UE.

For example, one service of the UE is currently transmitted through the base station B. But the cell of the base station B cannot provide the required service, e.g., QoS cannot be satisfied, for the service newly requested by the UE. The current location also has access technology a that can meet the service requirements of the UE. But the relay is now unable to support access technology a. Or currently the UE has no service 1, but the base station whose current location can serve the relay has only base station a, but the relay is now unable to support access technology a (e.g., only access technology B).

Step 903: the relay sends a message to the management center module to request to download corresponding access technology software, and the relay can be used in the Un interface to support the access technology A after the downloading from the management center is completed. The access technologies supported by the relay at the Uu interface and the Un interface may be different. The kind of access technology supported by the Un interface may also change dynamically. The relay may delete an access technology on demand, or may download access technology software from the management centre on demand for the user service. Therefore, the relay can be accessed to a plurality of access systems simultaneously, different types of services are provided for the UE, the QoS requirements of users are met to the maximum extent, and the use optimization of network resources is ensured.

The communication between the relay and the resource management module is end-to-end, or can be carried out through any base station at the current position, and the base station transparently transmits the communication contents of the relay and the resource management module.

Step 904, the relay sends the service request message to the base station a, and the relay and the base station exchange uplink and downlink user plane information to establish a bearer for data transmission. The base station a may allocate downlink user plane transmission resources after receiving the request message from the relay, and then send a request message to the core network to notify the core network of the allocated downlink user plane resources. After receiving the response message of the core network, sending the response message to the relay, and notifying the relay of the allocated uplink user plane information.

Step 905, the base station a initiates a service request and bearer establishment procedure with the core network. The base station may send a response message to the relay after receiving the response message of the core network, and notify the relay of the allocated uplink user plane information.

Thus, the whole workflow of the fifth implementation example of the communication system and the communication method of the present invention is completed.

Corresponding to the method, the invention provides a network side device, which comprises a receiving module, a resource allocation module and a sending module. Wherein:

and the receiving module is used for receiving the service request and the data information of the user equipment UE.

And the resource allocation module is used for selecting communication resources of two or more base stations for the UE, wherein at least two base stations have different communication systems.

And the sending module is used for sending the data information to the UE according to the communication resources.

Furthermore, the system also comprises a dynamic loading module,

a dynamic loading module, configured to dynamically add a supported access mode according to a service request or an environmental condition of the UE, where a communication system corresponding to the access mode includes, but is not limited to, one or more of the following communication systems: GSM, WCDMA, LTE, or LTE-A.

Further, the system also comprises a public communication module,

the public communication module is used for transmitting uplink and downlink public information independent of a communication system with the UE, the public information can be transmitted through a new public channel, and new information transmission can be added in the existing communication system. And performing resource allocation on the uplink and downlink common channels through a resource allocation module.

Obviously, the network side device implementing the above method may appear as different network entities in a real network, for example, the network side device includes but is not limited to: RN, base station or resource management module functional entity.

In the above embodiment, the receiving module of the network side device merges data from two or more base stations with different communication systems, and/or separates and transmits data to the base stations with two or more different communication systems through the transmitting module. Particularly, when the network side device itself is a base station, the data information is interacted with another base station or base stations of different communication systems.

In another aspect, an embodiment of the present invention further provides a cellular communication method, including the following steps:

user Equipment (UE) sends a service request to network side equipment;

the UE receiving network side equipment selects communication resources of two or more base stations for the UE, wherein at least two base stations have different communication modes;

According to the method provided by the invention, the UE equipment can receive the information of a plurality of pieces of equipment on the network side, such as services provided by a plurality of base stations or base stations of a plurality of communication systems simultaneously. In the present invention, the network side device includes, but is not limited to, an RN, a base station, or a resource management module functional entity.

In addition, when the UE determines that the communication standard of the base station and/or the RN under the base station is not matched with its own access technology, the UE dynamically adds the same access mode as the base station or the RN, where the communication standard corresponding to the access mode includes, but is not limited to, one or more of the following communication systems: GSM, WCDMA, LTE, or LTE-A.

In addition, an uplink and downlink common channel independent of the communication system is established between the UE and the network side equipment, and the UE and the network side equipment communicate through the uplink and downlink common channel to acquire the communication resources.

Fig. 10 shows a sixth embodiment of the present invention. In this embodiment, the terminal may dynamically change the access mode supported by the terminal according to the environment requirement (for example, the access type of the relay providing the service in the mobile environment). As shown in fig. 10, the process includes:

step 1001, the terminal searches available communication systems and available resources according to the service requirements. There are various specific search methods. For example, the first method: each base station or cell of the relay broadcasts available resource information, or QoS information that can be provided. The terminal obtains the available resource information by answering the corresponding information. The second method comprises the following steps: the available resource information is broadcast by a resource management module. The resource management module can obtain the resource information available for each base station or relay cell through interaction with each base station or relay. And the terminal can report the information of the available RAT and/or the cell at the current position to the resource management module, and the resource management module returns the information of the available resource of each access system cell. According to the resource information available for each access system cell, the terminal decides which access system or systems to select to provide service for the UE.

For example, there is an access technology a at the current location that can meet the traffic needs of the UE. But the terminal is now unable to support access technology a. Or the current location may serve only access technology a capable relays for the terminal, but the terminal is now not capable of supporting access technology a (e.g., only access technology B).

Step 1002: the terminal sends a message to the management center module to request for downloading the corresponding access technology software, and the terminal can support the access technology A after the downloading from the management center is completed. The types of access technologies supported by the terminal may change dynamically. The terminal may delete an access technology on demand, or may download access technology software from the management centre on demand for the user service. Therefore, the terminal can be accessed to a plurality of access systems simultaneously, different types of services are provided for the UE, the QoS requirements of users are met to the maximum extent, and the use optimization of network resources is ensured.

The communication between the terminal and the management center is end-to-end, for example, through any one base station in the current position, and the base station transparently transmits the communication content of the two.

In step 1003, the terminal sends a service request message to the relay. The relay sends a service request to the base station a, and the relay may send a response message to the UE after receiving the response message from the base station a. It is also possible to send the response message directly to the UE.

Step 1003, the relay sends a service request to the base station a, and the relay and the base station exchange uplink and downlink user plane information to establish a bearer for data transmission. The base station a may allocate downlink user plane transmission resources after receiving the request message from the relay, and then send a request message to the core network to notify the core network of the allocated downlink user plane resources. After receiving the response message of the core network, sending the response message to the relay, and notifying the relay of the allocated uplink user plane information.

Step 1005, the base station a initiates a service request and bearer establishment procedure with the core network. The base station may send a response message to the relay after receiving the response message of the core network, and notify the relay of the allocated uplink user plane information.

Thus, the whole workflow of the sixth implementation example of the communication system and the communication method of the present invention is completed.

Fig. 11 shows a seventh exemplary embodiment of the present invention. In this embodiment, the terminal may dynamically change the access mode supported by the terminal according to the environment requirement (for example, the access type of the relay providing the service in the mobile environment). As shown in fig. 11, the process includes:

step 1101, the terminal searches available access technologies and available resources according to the service requirement. There are various specific search methods. For example, the first method: the cells of the respective base stations broadcast available resource information, or QoS information that can be provided. The terminal obtains the available resource information by answering the corresponding information. The second method comprises the following steps: the available resource information is broadcast by a resource management module. The resource management module can obtain the available resource information of each base station cell through interaction with each base station. And the terminal can report the information of the available RAT and/or the cell at the current position to the resource management module, and the resource management module returns the information of the available resource of each access system cell. According to the resource information available for each access system cell, the terminal decides which access system or systems to select to provide service for the UE.

For example, one service of the UE is currently transmitted through the base station B. But the cell of the base station B cannot provide the required service, e.g., QoS cannot be satisfied, for the service newly requested by the UE. The current location also has access technology a that can meet the service requirements of the UE. But the UE is now unable to support access technology a. Or currently the UE has no service 1, but the current location available base station is only base station a, but the UE cannot support access technology a (e.g. only access technology B).

Step 1102: the terminal sends a message to the management center module to request for downloading the corresponding access technology software, and the terminal can support the access technology A after the downloading from the management center is completed. The types of access technologies supported by the terminal may change dynamically. The terminal may delete an access technology on demand, or may download access technology software from the management centre on demand for the user service. Therefore, the terminal can be accessed to a plurality of access systems simultaneously, different types of services are provided for the UE, the QoS requirements of users are met to the maximum extent, and the use optimization of network resources is ensured.

Step 1103: the terminal sends service request message to the base station A, the base station A can allocate downlink user plane transmission resource after receiving the request message from the terminal, and then sends the request message to the core network to inform the core network of the allocated downlink user plane resource. After receiving the response message of the core network, sending the response message to the terminal, and informing the terminal of the allocated uplink user plane information.

Step 1104: the base station a initiates a service request and bearer establishment procedure with the core network. The base station may send a response message to the terminal after receiving the response message of the core network, and notify the terminal of the allocated uplink user plane information.

Thus, the whole work flow of the seventh implementation example of the communication system and the communication method of the present invention is completed.

Corresponding to the method, the embodiment of the invention also provides User Equipment (UE), which comprises a sending module, a resource allocation module and a receiving module. Wherein:

the resource allocation module is used for allocating corresponding resources for the service according to the communication resources; and

the sending module and the receiving module communicate with the network side device at corresponding resources.

In addition, the system also comprises a dynamic loading module,

the dynamic loading module is used for dynamically adding an access mode the same as that of the base station or the RN when judging that the communication system of the RN under the base station and/or the base station is not matched with the access technology of the RN, wherein the communication system corresponding to the access mode comprises but is not limited to one or more of the following communication systems: GSM, WCDMA, LTE, or LTE-A. The dynamic loading module may also dynamically delete a supported access technology.

In addition, the system also comprises a public communication module,

the public communication module is used for transmitting uplink and downlink public information independent of a communication system with network side equipment, the public information can be transmitted through a new public channel, and new information transmission can be added in the existing communication system.

In the above embodiment, the receiving module of the UE is further configured to combine data from two or more base stations with different communication schemes, and/or separate and send the data to the base stations with two or more different communication schemes through the sending module.

The mobile terminal includes, but is not limited to, a mobile phone, a Personal Digital Assistant (PDA) or a palm computer.

In order to support the method or apparatus of the above embodiments, it is necessary to add 1) a cognitive radio function to the terminal, the relay, and the base station, which can automatically perceive available spectrum resources or radio technologies accessible in the environment. For example, there is a matching module in the device, and the access mode that can be known by searching and matching of the air interface but is supported by the previous cell is WCDMA, LTE-a or others. 2) SDR (Software-defined Radio) functionality for supporting various access modes. By downloading the software of the access mode and running the software, one access mode can be dynamically supported. 3) And the reconfiguration control module can reconfigure the access technology or perform reconfiguration on the UE. 4) The combined resource management module can comprehensively manage wireless resources and realize resource optimization. A certain frequency can be dynamically configured to a certain cell, and resources can be transferred between different cells, so that the resource utilization of the whole system is optimized.

The relay and the base station also need to have self-configuration and self-optimization functions, which are self-configuration and self-optimization under the condition of supporting multiple access modes. For example, the relay or the base station collects information of the served users, including information of user services, if the currently served users use more voice services, the relay or the base station requests the management center to download access mode software of the WCDMA, and after the downloading is completed, most cells at the current position are configured to be in the WCDMA mode by operating the software. After a period of time, the number of data service users in the network is large and the requirement on the data rate of the users is high, the relay or the base station requests the management center to download the LTE-A access mode software, and after the downloading is finished, most cells at the current position are configured into the LTE-A mode by operating the software. For another example, if a certain frequency band is allocated to WCDMA and another frequency band is allocated to LTE, if the relay or base station finds that the load of the WCDMA system is less than that of a light user and the load of the LTE system is heavy, the relay or base station may make part of the frequency band of WCDMA available to LTE. For another example, if the load in WCDMA is less than that of a light user and the load of a user in LTE system is more, the relay or the base station may change the handover parameter or the cell reselection parameter, so that more users may select to the WCDMA system. Through the self-configuration and self-optimization function, the system can be reconfigured through automatic detection of the system without manual participation, wherein the access mode and the frequency are included, and resources are used. And self-optimizing the network according to the real-time condition of the network, so that the performance of the whole network is optimal.

The network device needs to include 1) a self-configuration self-optimization management function entity to optimize resources in the heterogeneous network. The system can be reconfigured through automatic detection of the system without human intervention, including access modes, frequencies, and used resources. And self-optimizing the network according to the real-time condition of the network, so that the performance of the whole network is optimal. 2) And the reconfiguration functional module is used for supporting reconfiguration functions of various access systems. And the terminal can be reconfigured, and under the condition that the cell access mode is changed, the base station sends a message to the UE to reconfigure the information of the resources allocated to the UE, thereby ensuring the continuity of the service received by the terminal.

The operation and maintenance unit needs to include 1) dynamic spectrum resource management, so that the spectrum can be dynamically allocated to different operators and different communication systems. For example, operator a has allocated one frequency band and operator B has allocated another frequency band. The operation and maintenance unit manages the resource use condition of two operators in real time, the real-time user condition and the service condition of the user. If the load of the user of the operator a is less and less, and the load of the user of the operator B is more and more, then a part of the frequency band of the operator a can be allocated to the operator B for use. For another example, if a certain frequency band is allocated to WCDMA and another frequency band is allocated to LTE, if the relay or base station finds that the load of the WCDMA system is less than that of a light user and the load of the LTE system is heavy, the relay or base station may make part of the frequency band of WCDMA available to LTE. 2) And by combining with wireless resource management, wireless resources in the heterogeneous network can be comprehensively managed, and resource optimization is realized. The network dynamically configures wireless parameters such as switching parameters or cell reselection parameters according to the burden conditions of the cells, so that the resource utilization of each network of each cell is optimal, and the interference is reduced. 3) The self-configuration self-optimization function module can reconfigure the system including access modes, frequencies and used resources through automatic detection of the system without manual participation. And self-optimizing the network according to the real-time condition of the network, so that the performance of the whole network is optimal. The specific implementation is as described above.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A method of cellular communication, comprising the steps of:

a base station receives a service request of User Equipment (UE);

the base station configures communication resources of at least two base stations for the UE, so that the at least two base stations establish a bearer with the UE and send data to the UE, wherein the at least two base stations have different communication systems.

2. The method of cellular communication according to claim 1, wherein said communication system comprises one or more of: GSM, WCDMA, LTE, or LTE-A.

3. The base station equipment is characterized by comprising a receiving module, a resource allocation module and a sending module;

the receiving module is used for receiving a service request of User Equipment (UE);

the resource allocation module is configured to configure communication resources of at least two base stations for the UE, so that the at least two base stations establish a bearer with the UE and send data to the UE, where the at least two base stations have different communication systems.

4. The base station device of claim 3, wherein the communication system comprises one or more of the following: GSM, WCDMA, LTE, or LTE-A.

5. A method of cellular communication, comprising the steps of:

user Equipment (UE) sends a service request to a base station;

the UE receives communication resources of at least two base stations configured by the base stations, wherein the at least two base stations have different communication modes;

and the UE receives data through the load established between the UE and the at least two base stations.

6. The method of cellular communication according to claim 5, wherein said communication system comprises one or more of: GSM, WCDMA, LTE, or LTE-A.

7. The UE is characterized by comprising a sending module and a dynamic loading module;

the sending module is used for sending a service request to the base station;

the dynamic loading module is configured to receive communication resources of at least two base stations configured by the base station, where the at least two base stations have different communication systems;

the dynamic loading module is configured to receive data through the bearer established between the at least two base stations and the UE.

8. The UE of claim 7, wherein the communication system comprises one or more of: GSM, WCDMA, LTE, or LTE-A.